
Description: Plnnr is a free and open-source alternative to Microsoft Project for project management. It allows users to create Gantt charts, track tasks, assign resources, and manage projects of any size.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Duffel is a travel technology company that provides an API for airlines, travel agencies, and partners to easily access and distribute travel content. Its platform helps streamline access to real-time pricing, shopping, booking and modern payment methods for air travel.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API